Shape and Space 8
3 marks · NormalGiven the vectors and , write down the vector as a column vector.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Also accept: (-2,13); [−2; 13]
Common mistakes: Multiplying incorrectly; Adding instead of multiplying
Show mark scheme and worked solution
Marking points
M1 · 1 mark · Multiplies by 3 correctly:
M2 · 1 mark · Multiplies by 2 correctly:
A1 · 1 mark · Adds vectors:
Worked solution
First, calculate .
Next, calculate .
Add the results: